Block and tackle.



Patented Nov. 12, 19.12.

wsms.

UNITED s'mrns PATENT sermon.

WARREN HARRIS, F TURLOCK, CALIFORNIA, ASSIGNOR 0F ONE-HALF TO ARTHUR J.EDDY AND R. F. BER-RYMAN, 0F TURLOCK, CALIFORNIA.

BLOCK AND TACKLE.

Application filed February 7, 1910. Serial No. 542,596.

To all whom it may concern:

Be it known that I, WVARREN HARRIS, a citizen of the United States,residing at Turlock, in the county of Stanislaus, State of California,have invented certain new and useful Improvements in Block and Tackle;

and I do declare the following to be a full,-

clear, and .exact description of the same, such as will enable othersskilled in the art to which it appertains to make and use the same,reference being had to the accompany-- 'and yet one which is exceedingly'efiective for the purposes for which it is formed.

These objects I accomplish by means of such structure and relativearrangement of parts as will fully appear by'a perusal of the followingspecification and claim. a

In the drawings similar characters of reference indicate correspondingparts in the several views.

Figure 1 is aside elevation of the complete structure. Fig. 2 is a sideview of the adjacent side of the device to that shown in Fig. 1.

. Referring now more particularly to the characters of reference on thedrawings, 1 designates an upper block having five 111- leys 2 while 3 isa lower block having our pulleys. Disposed lon 'tudinally around theblock 1 is a band 5' formed into an eye 6 at its lower end into whicheye 6;is flexibly engaged an eye, 7 on a band 8 disposed longitudinallyaround a block 9 disposed trans versely with r espect to the block 1 andhaving four pulleys 10. Similarly the block 3 has a longitudinal band 11formed into an eye 12 into which is flexiblyengaged an eye 13 on a band14 on a block 15 disposed transversely with respect to the block .3 andhaving four pulleys 16.

On the block 1 is an eye 17 to beengaged with any fixed fastening as ahook 18 while on theblock 3 is a flexible hook or fastening 19 to besecured to the thing to be moved.

20 is the rope or cable which is wound through the pulleys 2, 4, 10 and16 in such manner as to permit the two free ends to come out over thetwo outer pulleys 2 and on opposite sides of the block which gives suchfree ends a down and double pull when connected with power the entirestructure shown as I have found, giving a high degree Eof power with aminimum amount of expense of energy. The blocks 9 and 15 are smal erthan the blocks 1 and 3 to permit the cable 20 to readily pass by thesame.

Frpm the foregoin description it will be read' y seen that I Iiaveproduced such a devi e as advances a novel step in the construction andada tation of the commonly used block and tac e.

While this specification sets forth in detail the present and preferredconstruction of the device, still in practice such deviations from suchdetail may be resorted to as do not form a departure from the spirit ofthe invention.

Having thus described my invention what I claim as new and useful anddesire to secure by Letters Patent is: t

A block and tackle comprising an upper and lower block, a metal bandsecured to the sides and one end of each of said blocks, each of saidbands being formed into a loop on the end of its respective block,another block disposed transversely adjacent to each of said first namedblocks, a metal band secured to the sides and end of each of said lastnamed blocks, each band having a loop formed at the end of itsrespective block, such loop engaging the loop on the band on theadjacent block, a plurality of pulleys in each of said blocks and acable interwoven through all of said pulleys, as described.

In testimony whereof I afiix my signature in presence of two witnesses.

WARREN HARRIS.

- Witnesses:

JOSHUA B. VVnBs'rER, PERCY S. IVnBs'rEn.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. G.

